Consistent GHC ABI checking

[hasufell]

Currently we do ABI checking here:

haskell-language-server/bindist/wrapper.in

Lines 65 to 81 in f1e146b

	# check ABI
	if "${GHC_PKG}" --version >/dev/null ; then
	:
	elif "${GHC_PKG}-${GHC_VERSION}" --version >/dev/null ; then
	GHC_PKG=${GHC_PKG}-${GHC_VERSION}
	else
	err_ghc_pkg "${GHC_PKG}"
	unset GHC_LIBDIR
	return 1
	fi
	PKGCONF="${check_ghc_libdir}/package.conf.d"
	MY_ABI_HASHES="$(for dep in $("${GHC_PKG}" --global --global-package-db "$PKGCONF" list --simple-output) ; do printf "%s:" "${dep}" && "${GHC_PKG}" --global --global-package-db "$PKGCONF" field "${dep}" abi --simple-output ; done | tr '\n' ' ' | xargs)"
	if [ "${ABI_HASHES}" != "${MY_ABI_HASHES}" ] ; then
	err_abi "${MY_ABI_HASHES}"
	return 3
	fi
	unset PKGCONF

@wz1000 suggested this should maybe be done in haskell-language-server-wrapper binary directly. But @fendor noted that the logic to get GHC is actually in hie-bios and this PR is relevant: haskell/hie-bios#282

So we probably want to check ABI in/via hie-bios.

---

Background:

• Implement distribution of dynamic builds #2675
• https://gitlab.haskell.org/ghc/ghc/-/merge_requests/5965
• Display a warning when using Template Haskell and static binaries #2391

[pepeiborra]

Now that hie-bios 0.9.0 is out, has anything changed re ABI checking?

[hasufell]

No. We still do abi checking in the shell script only.